Method and system for treating radio communication

Method and system for treating radio communication

  • CN 1,941,657 B
  • Filed: 08/28/2006
  • Issued: 04/24/2013
  • Est. Priority Date: 09/28/2005
  • Status: Active Grant
First Claim
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1. method of processing radio communication, it is characterized in that, the method is included in the single-chip, with in a plurality of channel weights that generate in the described single-chip at least one, and at least one in a plurality of signals that are applied to obtain by a plurality of antenna receptions in the single OFDM receiver;

  • Dispose the described single-chip in the described OFDM receiver, to process a plurality of at least one based in the communication protocol of OFDM;

    Dynamically update at least a portion in described at least one weight in described a plurality of channel weight;

    Determine phase place and the range weight of described at least one weight in described a plurality of channel weight;

    Described method further comprises, first and additional reception antenna in receive the single-channel communication signal, to in additional antenna, receive to such an extent that signal multiplies each other with the rotation waveform, will make up to generate by described a plurality of signals that described a plurality of antenna receptions obtain single combination and receive signal;

    Described method further comprises, is connected to the processor arbitration of described single-chip and/or arranges the collaboration communication of cellular module and OFDM intermodule in the receiver;

    Wherein,Generate described channel weight by single weight base band generator;

    By frequency mixer, with described channel weight, be applied to a plurality of signals that obtain by a plurality of antenna receptions in the delay OFDM receiver;

    Described single weight base band generator is used for the system of two transmitting antennas and M reception antenna, and M is natural number;

    Single weight base band generator comprises the initial controller of phase rotation device, time delay module, single weight generator channel estimator, single weight generating algorithm module and RF phase place and amplitude controller;

    Described phase rotation device and initial controller are used for the part operation of control RF phase place and amplitude controller, and the delay of control module;

    Described phase rotation device and initial controller receive from baseband processor or come the reset signal of firmware operation in the self processor, determine that to point out propagation channel estimates and/or be applied to the beginning of operation of the channel estimating of frequency mixer;

    Described time delay module is used for being provided for compensating the time delay of RF/ modulator-demodulator time delay;

    This time delay can be used for compensating the baseband bank channel estimation value that occurs in reception With Between the time interval, the baseband bank channel estimation value With Made amendment by the actual rotation waveform in rotation waveform and the frequency mixer;

    Single weight generator channel estimator is for the treatment of the first and second baseband bank channel estimation values With And definite propagation channel estimated value Arrive With Arrive Matrix Single weight generator channel estimator also can be used for generating the algorithm commencing signal of single weight generating algorithm module, is used to indicate the propagation channel estimated value Arrive With Arrive Matrix Can obtain processing;

    When the synthetic operation of carrying out when single weight generator channel estimator finishes, assert the algorithm commencing signal;

    Single weight generating algorithm module is used for determining to make receiver signal and interference plus noise than maximized (M-1) individual channel weight, and (M-1) individual channel weight comprises amplitude and phase component, i.e. A 1To A M-1And φ

    1To φ

    M-1Single weight generating algorithm module also is used for determining to be sent to the feedback information of transmitter;

    Calculate simultaneously channel weight and feedback information, with the Signal to Interference plus Noise Ratio of maximization receiver;

    Single weight generating algorithm module also can be used for the generating algorithm end signal, is used for informing that RF phase place and amplitude controller channel weight have been determined and have can be applicable to frequency mixer;

    RF phase place and amplitude controller 412 will rotate waveform Extremely Or phase place and range weight A 1To A M-1And φ

    1To φ

    M-1Be applied to frequency mixer;

    The algorithm end signal that the control signal that RF phase place and amplitude controller provide according to the initial controller of phase rotation device and/or single weight generating algorithm module generate is used rotation waveform or amplitude and phase component;

    Described RF phase place and amplitude controller comprise switch, a plurality of rotation sources of waveforms, a plurality of single weight generating algorithm weight;

    Described switch is used at the rotation waveform Extremely The weight definite with single weight generating algorithm Extremely Middle selection;

    Described rotation sources of waveforms is used for generating signal W wherein Rk=2 π

    f RkAnd f RkBe speed, this frequency keeps receiving the orthogonality of signal between reception antenna;

    Inhibit signal can be selected w in the speed of the orthogonality of reception antenna Rk=kw r, wherein k=1,2 ..., M-1;

    A plurality of single weight generating algorithm weights can respectively from what phase component A of amplitude 1To A M-1And φ

    1To φ

    M-1Generate signal Extremely The control information that described RF phase place and amplitude controller provide according to the initial controller of phase rotation device is with signal Extremely Being applied to frequency mixer arrives;

    The rotation sources of waveforms is selected in the control information that switch provides according to the initial controller of phase rotation device;

    In case single weight generating algorithm module has determined that channel weight and phase place and range weight have been sent to RF phase place and amplitude controller, the algorithm end signal is used for changing the selection of switch;

    When single weight generation channel estimator was used for the antenna system of two transmitting antennas and two reception antennas, described single weight generated channel estimator and comprises the first channel-estimator block and second channel estimator module;

    The first channel-estimator block comprises phase rotation device, frequency mixer, first integrator and second integral device;

    The second channel estimator module also comprises phase rotation device, frequency mixer, first integrator and second integral device;

    Described phase rotation device is used for generating the rotation waveform Complex conjugate;

    First integrator and second integral device are used in the cycle input signal being carried out integration at 360 degree phase rotatings;

    Are integral accuracy and/or the time of integration variable and can be selected by single weight base band generator;

    Frequency mixer in frequency mixer in the first channel-estimator block and the second channel estimator module can be respectively with the first and second baseband bank channel estimation values, With Multiply each other with the complex conjugate of rotation waveform, wherein And The delay time signal of described time delay module can point out phase rotation device, first integrator and/or second integral device when to begin the operation of determining that propagation channel is estimated;

    Assert that the second integral device receives the baseband bank channel estimation value after the delay time signal, and in the cycle baseband bank channel estimation value is carried out integration at 360 degree phase rotatings;

    Can select the time of integration according to the performance of accuracy of channel estimation and required modulator-demodulator;

    The time of integration is longer, and then the accuracy of channel estimation value is higher;

    Second integral device in the first channel-estimator block and the second integral device in the second channel estimator module can be determined by following formula respectively With Desired value to obtain the propagation channel estimated value With With

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